I’m sorry, it appears I’m full of questions! So at the end of our stay at DLP, we’ll be taking the train into Paris to stay there for a few days. We just can’t decide what time we’ll want to leave at. We may want to stay and use the hotel amenities a bit after check out. Or go walk around Disney Village. Can we wait and just purchase our RER tickets day of, once we know when we want to leave? Either at the train station or online? Do they often sell out? Or will they be a lot more expensive that way? TIA